TAIPEI (Taiwan News) – Chan Yung-jan (詹詠然) and Swiss champion Martina Hingis won their ninth title of the year by defeating Timea Babos of Hungary and Andrea Hlavackova of the Czech Republic in straight sets at the China Open Sunday.

The duo, listed as the No.1 seeds, won easily over their No.4 adversaries 6-1, 6-4. For Chan and Hingis, it was the ninth title this year, including a U.S. Open win which amounted to their first Grand Slam title. In addition, “they are currently in the midst of a staggering 18-match winning streak,” the Women’s Tennis Association wrote on its website.

Sunday’s event started with “excellent volleys by the Swiss veteran and strong groundstrokes from the Taiwanese star,” the WTA noted.

Their adversaries played more aggressively, helping them to regain some lost ground at the start of the second set, but in the end, Chan and Hingis claimed the only break of the second set, 3-3, and from then on, the Swiss-Taiwanese duo again gained the upper hand thanks to “a fiery Chan forehand,” according to the WTA.

Chan, 28, was the target of controversy at the Taipei 2017 Summer Universiade last August as she was accused of leaving the event prematurely in order to participate in more lucrative and high-profile competitions overseas.